Pigeons roost on utility lines on a mild winter day on Tuesday, Jan. 29, 2013, in Rensselaer, N.Y.

Pigeons roost on utility lines on a mild winter day on Tuesday, Jan. 29, 2013, in Rensselaer, N.Y.

Photo: Mike Groll, Associated Press

Pigeons roost on utility lines on a mild winter day on Tuesday,... Photo-4107603.55917 - StamfordAdvocate

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Children participate in a U.S. citizenship ceremony at the U.S. Citizenship and Immigration Services (USCIS), district office on January 29, 2013 in New York City. Some 118,000 immigrants applied for U.S. citizenship and 2,500 children received citizenship certificates in the New York City dictrict in 2012. Although underage children of naturalized immigrants usually receive U.S. citizenship, they must go through a process at the USCIS in order to receive legal certificates. Children born in the United States are American, regardless of the immigrant status of their parents. less

Children participate in a U.S. citizenship ceremony at the U.S. Citizenship and Immigration Services (USCIS), district office on January 29, 2013 in New York City. Some 118,000 immigrants applied for U.S. ... more

Photo: John Moore, Getty Images

Children participate in a U.S. citizenship ceremony at the U.S.... Photo-4107606.55917 - StamfordAdvocate

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New Jersey Attorney General Jeffrey S. Chiesa, center at podium, stands with other officials, Tuesday, Jan. 29, 2013, in Trenton, N.J., as he announces that the gun buyback program last Friday and Saturday in the state's capital brought in over 2,600 guns, including 700 that were illegal. less

New Jersey Attorney General Jeffrey S. Chiesa, center at podium, stands with other officials, Tuesday, Jan. 29, 2013, in Trenton, N.J., as he announces that the gun buyback program last Friday and Saturday in ... more

Committee Chairman and U.S. Sen. John Kerry (D-MA) speaks to the press after a mark up hearing before Senate Foreign Relations Committee to vote on the nomination of Kerry to be secretary of State January 29, 2013 on Capitol Hill in Washington, DC. The Senate panel has approved the nomination and it is expected the full Senate will pick up the vote today to confirm the nomination to succeed Hillary Clinton. less

Committee Chairman and U.S. Sen. John Kerry (D-MA) speaks to the press after a mark up hearing before Senate Foreign Relations Committee to vote on the nomination of Kerry to be secretary of State January 29, ... more

Retired Infantryman Brendan M. Marrocco uses his transplanted arm to brush his hair back during a news conference Tuesday, Jan. 29. 2013 at Johns Hopkins hospital in Baltimore. Marrocco received a transplant of two arms from a deceased donor after losing all four limbs in a 2009 roadside bomb attack in Iraq. less

Retired Infantryman Brendan M. Marrocco uses his transplanted arm to brush his hair back during a news conference Tuesday, Jan. 29. 2013 at Johns Hopkins hospital in Baltimore. Marrocco received a transplant ... more

Mike Burke of Vernon Hills, Ill. enjoys the unseasonably warm weather while sitting with his Huskies at the Dog Exercise Area in the Lake County Forest Preserves east of Wauconda on Tuesday, Jan. 29, 2013. Illinois residents who have been whiplashed by weather extremes are enjoying the temperatures that soared into the mid-60s Tuesday, exactly one week after they bundled in parkas and wool hats against subzero temperatures and brutal wind chills. less

Mike Burke of Vernon Hills, Ill. enjoys the unseasonably warm weather while sitting with his Huskies at the Dog Exercise Area in the Lake County Forest Preserves east of Wauconda on Tuesday, Jan. 29, 2013. ... more